Method and system for controlling and switching power source associated with electrical devices

1. A system for controlling and switching a power source for switching input power supplied to a plurality of loads, comprising: a plurality of switching sets for controlling the plurality of loads; a telephone line connecting unit connected to the switching sets and to a telephone, by which a state of the switching sets is monitored and controlled through the telephone, and results of the monitoring and controlling are outputted to a user as a voice message, wherein the telephone line connecting unit comprises, a central processing unit (CPU) interfaced with a switching set controller, for controlling an output operation of a voice message according to an input command applied via a telephone line, a switching set controller interfaced with the CPU, for outputting a control signal to turn on/off one of the loads, a transmission/receiving unit for transmitting the output control signal of the switching set controller to one of the loads, and supplying the received response signal to one of the switching sets, a voice message outputter for outputting at least one voice message from a plurality of pre-stored voice messages under the control of the CPU, a voice signal processor for performing signal processing to transmit the voice messages of the voice message outputter via the telephone line upon detecting a tone signal from the user, and a dial signal detector for detecting a dial signal received via the telephone line, wherein the voice message outputter includes, a short phoneme processor for outputting phonemic information regarding a short phoneme portion of the voice messages under the control of the CPU, a long phoneme processor for outputting phonemic information regarding a long phoneme portion of the voice messages under the control of the CPU, a voice signal controller for outputting voice data corresponding to the phonemic information output from the short and long phoneme processors, a voice oscillator for ouputting an address corresponding to a predetermined oscillating frequency to output a voice to said voice signal controller, and a voice signal mixer for mixing the voice corresponding to the voice address to a voice signal of an analog form.

2. The switching system as claimed in claim 1 , wherein said voice signal processor comprises a filter for receiving the voice signal from said voice message outputter and filtering a voice grade of the voice signal; an amplifier for amplifying the voice signal filtered by said filter into a proper level; a circuit switch for switching a circuit between said amplifier and a circuit connector in order to output the amplified voice signal to the subscriber or output a tone signal applied via the telephone line to said CPU; a circuit connector for connecting and disconnecting the telephone line according to a selection control signal output from said CPU; and a rectifier for rectifying the voice signal output from said circuit connector and transmitting the rectified signal to the telephone line.

3. The switching system as claimed in claim 1 , wherein said switching set controller further comprises a memory for storing an address allocated for the operation of an open/closed element to switch the supply of a power source of said telephone line connector.

4. The switching system as claimed in claim 1 , wherein said voice message outputter outputs a predetermined voice message according to an address for present phonemic information.

5. The switching system as claimed in claim 1 , wherein said switching set controller is interfaced with the main switching set of each unit and said CPU according to the preset address to discern a corresponding load.

6. The system according to claim 1 , wherein the switching sets comprises: a main switching set for monitoring states of respective loads and controlling all the loads according to result of the monitoring; and a sub switching set for controlling loads which are connected to the sub switching set in accordance with commands from the main switching set.

7. The system according to claim 6 , wherein the main switching set comprises: a transmit/receive unit for inputting/outputting signals with the telephone line connecting unit; a display unit for displaying on/off states of the respective loads; a switching unit including switches controlling the respective loads; and a controlling signal generating unit for controlling the display unit, the first switching unit and the transmit/receive unit according to a command signal inputted form the transmit/receive unit.

8. The system according to claim 6 , wherein the sub switching set comprises: a transmit/receive unit for inputting/outputting with the telephone line connecting unit; a display unit for displaying on/off states of the loads which are connected to the sub switching set; a switching unit including switches for controlling the loads connected to the sub switching set; and a controlling signal generating unit for controlling the display unit, the switching unit and the transmit/receive unit according to a command inputted from the transmit/receive unit.